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/* $OpenBSD: tcvar.h,v 1.16 2010/11/11 17:54:54 miod Exp $ */
/* $NetBSD: tcvar.h,v 1.17 2000/06/04 19:15:15 cgd Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#ifndef __DEV_TC_TCVAR_H__
#define __DEV_TC_TCVAR_H__
/*
* Definitions for TURBOchannel autoconfiguration.
*/
#include <machine/bus.h>
#include <dev/tc/tcreg.h>
/*
* Machine-dependent definitions.
*/
#include <machine/tc_machdep.h>
struct tc_softc {
struct device sc_dv;
int sc_speed;
int sc_nslots;
struct tc_slotdesc *sc_slots;
void (*sc_intr_establish)(struct device *, void *,
int, int (*)(void *), void *, const char *);
void (*sc_intr_disestablish)(struct device *, void *, const char *);
bus_dma_tag_t (*sc_get_dma_tag)(int);
};
/*
* Arguments used to attach TURBOchannel busses.
*/
struct tcbus_attach_args {
char *tba_busname; /* XXX should be common */
bus_space_tag_t tba_memt;
/* Bus information */
u_int tba_speed; /* see TC_SPEED_* below */
u_int tba_nslots;
struct tc_slotdesc *tba_slots;
u_int tba_nbuiltins;
const struct tc_builtin *tba_builtins;
/* TC bus resource management; XXX will move elsewhere eventually. */
void (*tba_intr_establish)(struct device *, void *,
int, int (*)(void *), void *, const char *);
void (*tba_intr_disestablish)(struct device *, void *, const char *);
bus_dma_tag_t (*tba_get_dma_tag)(int);
};
/*
* Arguments used to attach TURBOchannel devices.
*/
struct tc_attach_args {
bus_space_tag_t ta_memt;
bus_dma_tag_t ta_dmat;
char ta_modname[TC_ROM_LLEN+1];
u_int ta_slot;
tc_offset_t ta_offset;
tc_addr_t ta_addr;
void *ta_cookie;
u_int ta_busspeed; /* see TC_SPEED_* below */
};
/*
* Description of TURBOchannel slots, provided by machine-dependent
* code to the TURBOchannel bus driver.
*/
struct tc_slotdesc {
tc_addr_t tcs_addr;
void *tcs_cookie;
int tcs_used;
};
/*
* Description of built-in TURBOchannel devices, provided by
* machine-dependent code to the TURBOchannel bus driver.
*/
struct tc_builtin {
char *tcb_modname;
u_int tcb_slot;
tc_offset_t tcb_offset;
void *tcb_cookie;
};
/*
* Interrupt establishment functions.
*/
int tc_checkslot(tc_addr_t, char *);
void tc_devinfo(const char *, char *, size_t);
void tcattach(struct device *, struct device *, void *);
void tc_intr_establish(struct device *, void *, int, int (*)(void *),
void *, const char *);
void tc_intr_disestablish(struct device *, void *, const char *);
/*
* Easy to remember names for TURBOchannel device locators.
*/
#define tccf_slot cf_loc[0] /* slot */
#define tccf_offset cf_loc[1] /* offset */
#define TCCF_SLOT_UNKNOWN -1
#define TCCF_OFFSET_UNKNOWN -1
/*
* Miscellaneous definitions.
*/
#define TC_SPEED_12_5_MHZ 25 /* 12.5MHz TC bus */
#define TC_SPEED_22_5_MHZ 45 /* 22.5MHz TC bus */
#define TC_SPEED_25_MHZ 50 /* 25MHz TC bus */
#define TC_SPEED_TO_KHZ(s) ((s) * (1000 / 2))
#endif /* __DEV_TC_TCVAR_H__ */
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